Home / 683,417.40-1,025,417.70-328,248.60

Finding the Fourth Proportional to 683,417.40, 1,025,417.70 and 328,248.60

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Solution

The fourth proportional to 683,417.40, 1,025,417.70 and 328,248.60 is: 492,512.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,417.40 : 1,025,417.70 = 328,248.60 : x
  2. Step 2: Convert to fraction form
    683,417.40/1,025,417.70 = 328,248.60/x
  3. Step 3: Cross multiply
    683,417.40x = 1,025,417.70 × 328,248.60
  4. Step 4: Simplify right side
    683,417.40x = 336,591,924,440.22
  5. Step 5: Solve for x
    x = 336,591,924,440.22/683,417.40
  6. Step 6: Final answer
    x = 492,512.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.